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IGF-1 LR3: muscle growth, or just hype? A peptide often mentioned in muscle growth circles — but what does the science actually say about IGF-1 LR3? IGF -1 stands for Insulin Growth Factor

The catabolism of adenosine triphosphate (ATP) leads to the production of adenosine diphosphate (ADP), adenosine monophosphate (AMP), and adenosine (ADO), which are further hydrolyzed by specific ectoenzymes [34]

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Electrolyte changes, especially increased blood potassium levels, may affect heart rhythm, so electrocardiogram (ECG or EKG) is sometimes used to monitor for arrhythmia (Ferri 2014a)